Sash-lock.



, NITED STATES PATENT onirica.

ivo. 796,280.

ySpecification of Letters Patent.

Patented Aug'. 1, 1905.

Application led February 28, 1905. Serial No. 247,698.

T0 all whom, t may concern:

Be it known that I, WILLIAM O. APPLEGATE, a citizen of the United States, .residing at Sharon, Mercer county, State of Pennsylvania, have invented certain new and useful Improvements in Sash- Locks; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which itapz pertains to make and use the same.

'Ihis invention relates to certain improvements'in double sash locks; andthe objects and nature of the invention will be readily understood by those skilled' in the art in the light of the following explanation ofthe constructions shown in the drawings.

An object of the invention lis to produce an improved and exceedingly "simple and effective device which can be manufactured at a minimum expense in rights and lefts from one form of blank, if so desired, and can be quickly and easily applied without expert assistance to the top rail of the lower sash and" front face of a stile thereof to lock either or" both sashes in any desired position and which will act as an antirattler, burglar-proof, ven,- tilating double sash-lock.

The invention consists in certain novel features in construction and arrangement and in combinations of parts, as more fully and particularly described hereinafter.

Referring to the accompanying drawings, Figure 1 is a perspective View of a portion of a window-frame and the meeting portions of the two sashes, showing my invention applied thereto, a left-hand lock being shown. Fig. 2 is a perspective of a right-hand lock, one of the screws being shown in dotted lines. Fig. 3 is a plan view of a form of blank from which both right and lefthand locks can be struck up, the dotted lines showing the bending-lines. f

In the drawings, 2 is the bottom or meeting rail, andv 3 a Vertical stile, of the upper sash.

4 is the top or meeting rail, and 5 is a vertical stile, of the lower sash.

6 is one of the Vertical stop or lead strips of the window frame arranged beside the stiles of the lower sash and confining said sash in the frame. l

My lock consists of a right-angle strong fiat metal plate having one end bent up at right angles to form a vertical ear and at its opposite end having a similar ear bent outwardly at right angles from the side edge of the plate and two screws adjustable through said ears. The plate is formed in one piece with said ears and is so struck up that the top or horizontal angle or arm 7 of the plate is preferably of about the same length and width as the vertical or depending arm or angle 8, and said portions 7 and 8 have screw or nail receiving holes for the devices to fasten the lock to the sash.

The fiat ear 9- extends vertically from the innerend of the horizontal portion 7, and said ear has a threaded horizontal hole 10 extend- 8 of said plate,.and said ear 11 is formed with the horizontal screw threaded opening 12 .l

therethrough.

A horizontal locking or set screw 13 with a rounded inner end and a large milled head is conned in and adjustable through the hole 10 of the ear 9, so that the head of the screw is readily accessible above the horizontal portion 7 of the plate. A similar screw 14 is confined in and adjustable through the hole 12 of the ear 11, so that the head of screw 14 is readily accessible in front of the lower end of portion 8 of the plate.

The locks are usually made in rights and lefts for securing at opposite ends of the top rail of the lower sash. rIhe left-hand lock is shown in Fig. 1 and the right-hand lock in Fig. 2. As shown by Fig. l, each lock is fitted on the lower sash, with the horizontal portion extending across and rigidly secured to the top rail and the vertical portion depending an equal distance on the front face of a vertical stile, with the ear 9 parallel with and, say, about one-quarter of an inch from the vertical face of a vertical stile of the upper sash, and the ear 11 having its flat face parallel with and about one-quarter of an inch from the vertical face of a stop 6 of the window-frame. If so desired, slight depressions 15 can be formed in vertical series directly in the wood of said stop and stile of the upper sash to receive the rounded ends of the screws 13 and 14. It is hence obvious that these screws can be turned to forcibly or otherwise engage the upper sash-Stiles and the window-frame stops, and hence firmly lock both sashes when completely closed or with either or both partially open for ventilation. The screws are so located that it is impossible to reach or tamper with them from the exterior, and, furthermore, the screws will hold and lock the sashes against rattling. The screws are readily accessible and can be easily and quickly operated to lock or release either or both sashes, and as I employ simple screws carried by the small iat ears struck up from the fiat plate the device is exceedingly simple and durable, involving no parts liable to get out of order or become displaced or inoperative.

Both right and left hand locks are struck up from blanks of the same shape.

The blank (see Fig. 3) is in the form of a flat elongated plate of the same thickness throughout and at one end having a lateral extension l1l to form the ear 1l in the completed lock. This blank is struck up by bending along the dotted lines to form the ears and right-angle plate, and the center bendingline can be varied toward or from the lateral extension 1l to produce locks for various standard Widths ot' sash-rails, and rights or lefts can be produced by merely reversing the positions of the blanks so that the extension 11 Will project to the right or the left of the blank when positioned for bending into the completed lock. rl`hese blanks are usually stamped out, and the various holes are formed therein, and the machine-Work is performed before the blanks are struck up into the angular forms.

If so desired, the locks can be cast or other- Wise formed, or the blank shown in Fig. 3 can be formed of malleable iron.

nesso When both sashes are closed, they can he tightly held against rattling by pressing the lower sash outwardly toward the upper sash and screwing the lower bolt or screw M tightly against the lead or stop 6, whereby the sashes will be held tightly together and in place.

When the lower sash is raised `for Ventilation, the upper bolt or screw 1?, screwed tightly against the upper sash, will hold both sashes against rattling.

What I claim is- A double sash-lock consisting essentially ol an angle-plate having a horizontal portion adapted to extend across the top rail 0l the lower sash, a portion to depend along a vertical stile thereof and having an outwardlyprojecting ear to extend beside a windowframe stop, and a portion projecting up from the end of said horizontal portion to extend beside the vertical stile of the upper sash, a headed screw adjustable through said upwardly-projecting portion to engage said stile and having its head above the plane oi said horizontal portion, and a headed screw adjustable through said ear to engage said stop and arranged outside of said dependent portion, substantially as described.

In testimony whereof l allix my signature in presence of two witnesses.

WILLIAM C. APPL IC( A'll Witnesses:

J. H. ELLIOTT, lV. Wr. SERVICE. 

